Clever Acoustics CRAM11 User manual

CRAM11
Brand
Clever Acoustics
Model
CRAM11
Category
Musical Equipment
Type
User manual
USER MANUAL
SL 120 100V 120W Slave Amplier
SL 240 100V 240W Slave Amplier
SL 350 100V 350W Slave Amplier
Order code: CRAM11
Order code: CRAM12
Order code: CRAM13
www.cleveracoustics.co.uk
WARNING
FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY
BEFORE YOUR INITIAL START-UP!
CAUTION!
Keep this equipment away from rain,
moisture and liquids.
SAFETY INSTRUCTIONS
Every person involved with the installation, operation & maintenance of this
equipment should:
- Be competent
- Follow the instructions of this manual
CAUTION! TAKE CARE USING THIS EQUIPMENT!
HIGH VOLTAGE-RISK OF ELECTRIC SHOCK!!
Before your initial start-up, please make sure that there is no damage caused during
transportation. Should there be any, consult your dealer and do not use the equipment.
To maintain the equipment in good working condition and to ensure safe operation, it is
necessary for the user to follow the safety instructions and warning notes written in this
manual.
Please note that damages caused by user modications to this equipment are not
subject to warranty.
1
2
IMPORTANT:
The manufacturer will not accept liability for any resulting damages caused
by the non-observance of this manual or any unauthorised modication to the
equipment.
• Never let the power-cable come into contact with other cables. Handle the
power-cable and all mains voltage connections with particular caution!
• Never remove warning or informative labels from the equipment.
• Do not open the equipment and do not modify the equipment.
• Do not switch the equipment on and off in short intervals, as this will reduce the
system’s life.
• Only use the equipment indoors.
• Do not expose to ammable sources, liquids or gases.
• Do not carry the unit with only one handle. Always carry using both handles.
• Always disconnect the power from the mains when equipment is not in use or
before cleaning! Only handle the power-cable by the plug. Never pull out the plug
by pulling the power-cable.
• Make sure that the available voltage is between 220V-240V.
• Make sure that the power-cable is never crimped or damaged. Check the
equipment and the power-cable periodically.
• If the equipment is dropped or damaged, disconnect the mains power supply
immediately.
Have a qualied engineer inspect the equipment before operating again.
• If the equipment has been exposed to drastic temperature uctuation (e.g. after
transportation), do not switch it on immediately. The arising condensation might
damage the equipment. Leave the equipment switched off until it has reached
room temperature.
• If your product fails to function correctly, discontinue use immediately. Pack the
unit securely (preferably in the original packing material), and return it to your
Prolight dealer for service.
• Only use fuses of same type and rating.
• Repairs, servicing and power connection must only be carried out by a qualied
technician. THIS UNIT CONTAINS NO USER SERVICEABLE PARTS.
• WARRANTY; One year from date of purchase.
• If this equipment is operated in any other way, than those described in this
manual, the product may suffer damage and the warranty becomes void.
• Incorrect operation may lead to danger e.g.: short-circuit, burns, electric shocks.
• Do not endanger your own safety and the safety of others!
Incorrect installation or use can cause serious damage to people and property.
This 100V line slave amplier was designed specically for use in permanent audio
installations, where reliability and premium sound quality are a must. Highly rugged
construction and high efciency design make this amplier perfect for continuous duty
applications in situations were power will be left on for indenite periods of time.
This 100V line amplier is warranted from defects for one year from the date of purchase.
Should your amplier require service, either within or beyond that warranty period, please
contact your Prolight Dealer.
This unit includes a host of features, along with an impressive list of specications, which
are detailed over the next pages. Please take the time to read this document completely
prior to installation of this product.
Slave amplier series are designed to suit all PA system application in schools, ofces and
stor
Features
• 70V, 100V and 4-16Ω loudspeaker outputs
• Balanced XLR line input
• Unbalanced 6.35mm jack line input
• Balanced XLR line output
• Unbalanced 6.35mm jack line output
• Temperature, clip and short circuit protection
• Power, signal, clip, protection and temperature LEDs
• GND/lift switch to prevent ground loop hum
• Fan cooled
• 24V DC and 240V AC inputs for maximum exibility
3
Specications SL 120 SL 240 SL 350
Power output: 120Wrms / 135W
peak
240Wrms / 255Wpeak 350Wrms / 375Wpeak
Speaker outputs: 70V, 100V & 4-16Ω 70V, 100V & 4-16Ω 70V, 100V & 4-16Ω
Sensitivity: 775mV (0dB) 775mV (0dB) 775mV (0dB)
S/N ratio: >105dB >105dB >105dB
Frequency response: 50Hz-18kHz 50Hz-18kHz 50Hz-18kHz
THD: <1% @ 1kHz, 1/3
rated power
<1% @ 1kHz, 1/3
rated power
<1% @ 1kHz, 1/3
rated power
Controls: Power, volume, GND,
LIFT
Power, volume, GND,
LIFT
Power, volume, GND,
LIFT
Indications: Power, signal, clip,
temp and protect
Power, signal, clip,
temp and protect
Power, signal, clip,
temp and protect
Protection: AC fuse, short circuit,
clipping and high
temperature
AC fuse, short circuit,
clipping and high
temperature
AC fuse, short circuit,
clipping and high
temperature
Power consumption: 200W 400W 500W
DC power supply: 24V DC 24V DC 24V DC
AC power supply: 240V-60Hz 240V-60Hz 240V-60Hz
Dimensions (H x W
x D):
88 x 484 x 353mm 88 x 484 x 353mm 132 x 484 x 408mm
Weight: 9.3kg 13.2kg 14.5kg
Order code: CRAM11 CRAM12 CRAM13
4
SL 350
SL120, SL 240
SL120, SL 240
SL 350
5
Rack Installation
The SL Series are rack mountable. The rack you use should be a double door rack where you can
open the front and rear panel. When mounting the amplier into the rack, please make sure that
there is enough space around the amplier.
Be careful when mounting the amplier into the rack. Put the heaviest products into the lower
part of the rack. Be aware that fastening the amplier with four screws on the front panel is not
enough.
Inputs
Short cables runs improve the sound quality remarkably. Input cables should be short and direct,
since high frequencies will mostly be absorbed if the cables are unnecessarily long. Besides that
a longer cable may lead to humming and noise problems. If the cable runs are unavoidable, you
should use balanced cables.
Outputs
The high damping factor of your amplier supplies a clear sound reproduction. Unnecessarily long
and thin cables used for low impedance (4-16Ω) speakers will inuence the damping factor and
thus the low frequencies in a negative way.
Connect your speaker systems via the speaker terminals (COM = -VE)
Examples: 1) COM + 4-16Ω
2) COM + 70V
3) COM + 100V
Note: Please do not use more than one pair of output terminals
Identication:
1. Power LED - This LED will light up once the amp is switched on
2. SIGNAL LED - This LED will light up when signal is being received
3. CLIP LED - This LED will ash when the output signal starts to distort. A this point turn the
master volume anti-clockwise to prevent damage.
4. PROT LED - This LED will illuminate when the unit goes into protect mode. Switch off the
amplier and check the output connections for faults or short circuits before powering on and
resuming operation.
5. TEMP LED - Temperature LED will illuminate when overheating. Switch off the amplier
and leave to cool down.
6. FAN Vent - Don not obstruct, keep clear of dust
7. On/off power switch - Use the switch to power the unit on or off
8. Master volume control - Use this control to increase or decrease the master volume
9. Carry handles
10. GND/LIFT switch - Switch to “GND” position when one unit is used, switch lift “LIFT” when
several units are used to avoid noise caused by several earth
line grounded.
11. DC LED - This LED will light up when optional DC power supply is used
12. FAN Vent - Do not cover to avoid overheating
13. Speaker outputs - Use these to connect the speakers
14. XLR input - Use this to connect signal input from mixer ampliers
15. 6.35mm mono jack input - Use this to connectsignal input from mixer ampliers
16. 6.35mm mono jack link - Use this to link out to additional slave ampliers
17. XLR link - Use this to link out to out to additional slave ampliers
18. 24V DC connections - Use this to connect to your optional 24V DC power supply
6
Connections To The Mains
Before connecting the amplier to the local mains voltage outlet should be checked to ensure the
available supply is 240V~AC 50Hz. This product is CLASS1 and requires a protective mains earth
to be connected at all times. DO NOT remove or disconnect the earth.
Power On/Off Procedure
After connecting your amplier to the mains, turn all controls counter clockwise to the “min”
position. Turn on audio sources (MP3 players, CD players, Microphones etc) before powering the
amplier ON. The last product to be switched on is the amplier.
If you wish to power off the system, turn the amplier’s master volume control counter clockwise
to the “min” position before switching the amplier OFF before any audio sources are switched off.
By following this procedure it will prevent acoustic shocks to the speakers or potential damage to
system components.
Machine operation
1. After connecting all audio source and powering on the power amplier, adjust the and the
master volume.
2. The Clever Acoustics amplier features output signal LED with PEAK indication. Should the
PEAK indicator illuminate (ashing) the output of the amplier is too high, turn the master volume
anti-clockwise to reduce the output.
3. The Clever Acoustics amplier all features protection with LED indication. Should the
PROTECT indicator illuminate, turn the master volume control anti-clockwise fully and switch off
the amplier for 15 seconds as the amplier may have entered PROTECT mode temporarily due
to a peak signal, care should then be taken to ensure all input levels are set correctly. If the
amplier persists to enter PROTECT mode the amplier should be switched off and left to cool
for 5-10 minutes before switching back on. If the PROTECT indicator remains lit this indicates a
problem with the amplier or amplier load (ie Short Circuit).
4. Speaker & Amplier systems can produce high sound pressure levels, please operate all
controls with caution to ensure people are not exposed to excessive or dangerous sound pressure
levels.
7
Panel Connections:
SL 120, 240, 350
MAINS
SLAVE AMPLIFIER
MIXER AMPLIFIER
XLR BAL
1-GND
2-HOT+
3-COLD-
CHIME ACTIVE
+48V PHANTOM
ON OFF ON OFF ON OFF ON OFFPRIORITY
MIC 1
GAIN
CHIME
2 TONE 4 TONE
REMOTE MIC
240V 50Hz
T6.3AL 250V
MIC 2
GAIN
+48V PHANTOM
MIC 3
GAIN
+48V PHANTOM
MIC 4
GAIN
+48V PHANTOM
TEL
VOLUME
INPUT
LINE 1
OUT
LINE 2
LINE
TEL
EMC
INPUT
OUTPUT
ZONE 5ZONE 4ZONE 3ZONE 2ZONE 1
COM
100V
COM
100V
COM
100V
COM
100V
COM
100V
100V
4
8 70V
COM
BATTERY SUPPLY
24V
16A
24V DC INPUT
(Optional)
PRE OUTPUT
8
Speaker connections:
WARNING!
Be sure to attache the supplied terminal cover attached after con-
nection. Because high voltage is applied to the speaker terminals,
car should be taken never touch these terminals to avoid
electric shock.
All speaker connections should be made using bare wire or suitable
insulated crimp terminals. Please ensure no loose strands are present
as these may short across terminals causing damage to the amplier
Notes:
• Both the 4 - 16Ω, 70V and 100V terminals cannot be used at the same time.
• Impedances indicated in the gures represent the total speaker system (load) impedances.
Loads presented to the amplier must be equal to or greater than listed above. Speaker
impedances must be measured using a true impedance meter, do not standard multimeters.
Total impedance
41Ω (SL 120)
20Ω (SL 240)
14Ω (SL 350)
Total impedance
83Ω (SL 120)
42Ω (SL 240)
28.6Ω (SL 350)
9
Balanced XLR Jack Connection
Connection With The Mains
Connect the unit to the mains via the IEC mains
inlet using the 13A UK - IEC cord supplied.
The earth has to be connected.
Switch the unit on. After switching on the speaker system, wait 8 - 10 seconds before you turn the
volume control up in order to avoid speaker damage.
CAUTION! Increase the level of each channel up to the point where the clip LEDs illuminate.
Always check the sound pressure level with a meter in order to keep to the legal threshold.
10
Cleaning and Maintenance
We recommend a frequent cleaning of the product. Please use a soft lint free and moistened
cloth. Never use alcohol or solvents.
There are no serviceable parts inside the product except for the fuse. Maintenance and service
operations are only to be carried out by authorised dealers.
Replacing the fuse
Only replace the fuse by a fuse of the same type and rating.
Before replacing the fuse, unplug the mains lead.
Should you need any spare parts, please use genuine parts.
Should you have any further questions, please contact your dealer.
CAUTION - DANGER TO LIFE
DISCONNECT FROM THE MAINS BEFORE
STARTING MAINTENANCE OPERATION
Problem Chart
CAUSE
The power cord is not connected
The power cord of the respective
product is not connected properly or
not at all.
The connection socket or the plug
is dirty.
The input signal is too strong
Load impedance is to low
REMEDY
Check the power cord and any
extension cables
Check the power cord and if the
plugs are properly connected with
the sockets.
Clean the socket and/or the plug.
Reduce the input signal via the
gain control.
Check load impedance vs amplier
specication, reduce as required.
PROBLEM
No Power
No Sound
Noise
Distorted Sound
11
www.cleveracoustics.co.uk
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13

Clever Acoustics CRAM11 User manual

CRAM11
Brand
Clever Acoustics
Model
CRAM11
Category
Musical Equipment
Type
User manual
Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents